Extracting prog: 6m4.079373683s
Minimizing prog: 1h42m41.535729054s
Simplifying prog options: 18m59.574289753s
Extracting C: 5m29.91173534s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program crashed: KASAN: use-after-free Read in l2cap_unregister_user
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
ioctl$sock_bt_hidp_HIDPCONNADD(0xffffffffffffffff, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
connect$bt_l2cap(0xffffffffffffffff, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r1 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r1, 0x400448c8, &(0x7f0000000340)={0xffffffffffffffff, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r1 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r1, 0x400448c8, &(0x7f0000000340)={r0, r0, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
move_mount(0xffffffffffffffff, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r1 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r1, 0x400448c8, &(0x7f0000000340)={r0, r0, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, 0x0, 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, 0x0, 0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program crashed: possible deadlock in l2cap_conn_del
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(0x0, &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', 0x0, 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, 0x0, 0x0)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program crashed: KASAN: use-after-free Read in l2cap_unregister_user
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program crashed: KASAN: use-after-free Read in l2cap_unregister_user
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program crashed: KASAN: slab-use-after-free Read in l2cap_unregister_user
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-open_tree-move_mount-mount$bind-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_init_net_socket$bt_hidp-ioctl$sock_bt_hidp_HIDPCONNADD
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r0, &(0x7f0000000140)='.\x00', 0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f0000000440)='./file0/../file0\x00', &(0x7f00000000c0)='./file0/file0\x00', 0x0, 0x8b101a, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0)
connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6)
ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f0000000340)={r1, r1, 0x8, 0x0, 0x0, 0xb, 0x1, 0x7, 0xfff9, 0x3, 0x0, 0x8, 'syz0\x00'})

program crashed: KASAN: use-after-free Read in l2cap_unregister_user
validation run: crashed=true
reproducing took 2h46m31.584430237s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:199 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common+0xd18/0x2678 kernel/locking/mutex.c:694
Read of size 8 at addr ffff0000de2500a8 by task khidpd_0007fff9/27270

CPU: 1 UID: 0 PID: 27270 Comm: khidpd_0007fff9 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 print_address_description+0xa8/0x238 mm/kasan/report.c:378
 print_report+0x68/0x84 mm/kasan/report.c:482
 kasan_report+0xb0/0x110 mm/kasan/report.c:595
 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381
 __mutex_waiter_is_first kernel/locking/mutex.c:199 [inline]
 __mutex_lock_common+0xd18/0x2678 kernel/locking/mutex.c:694
 __mutex_lock kernel/locking/mutex.c:776 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828
 l2cap_unregister_user+0x74/0x190 net/bluetooth/l2cap_core.c:1729
 hidp_session_thread+0x3d0/0x490 net/bluetooth/hidp/core.c:1304
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000de252700 pfn:0x11e250
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffdffc3773c08 ffff00019bc03d40 0000000000000000
raw: ffff0000de252700 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000de24ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000de250000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000de250080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                  ^
 ffff0000de250100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000de250180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:199 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common+0xd18/0x2678 kernel/locking/mutex.c:694
Read of size 8 at addr ffff0000de2500a8 by task khidpd_0007fff9/27270

CPU: 1 UID: 0 PID: 27270 Comm: khidpd_0007fff9 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 print_address_description+0xa8/0x238 mm/kasan/report.c:378
 print_report+0x68/0x84 mm/kasan/report.c:482
 kasan_report+0xb0/0x110 mm/kasan/report.c:595
 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381
 __mutex_waiter_is_first kernel/locking/mutex.c:199 [inline]
 __mutex_lock_common+0xd18/0x2678 kernel/locking/mutex.c:694
 __mutex_lock kernel/locking/mutex.c:776 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828
 l2cap_unregister_user+0x74/0x190 net/bluetooth/l2cap_core.c:1729
 hidp_session_thread+0x3d0/0x490 net/bluetooth/hidp/core.c:1304
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000de252700 pfn:0x11e250
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffdffc3773c08 ffff00019bc03d40 0000000000000000
raw: ffff0000de252700 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000de24ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000de250000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000de250080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                  ^
 ffff0000de250100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000de250180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================